Motorcycle



FIG. 1 is a front, right perspective view of a motorcycle showing my new design;

FIG. 2 is a right side view thereof; and,

FIG. 3 is an enlarged view of FIG. 1 with environment removed to enhance clarity.

The broken lines immediately adjacent to the shaded area define the bounds of the claimed design and form no part thereof. The broken lines depicting the remainder of the motorcycle show features that form no part of the claimed design. 

CLAIM The ornamental design for a motorcycle, as shown and described. 